8-channel analog output terminal 4…20 mA, 12bit EL4028
Run LED 8
Run LED6
Run LED 4
Run LED2
Run LED7 
Run LED5 
Run LED3 
Run LED1 
Power contact
+24 V
Power contact 0 V
Output 1
Output 3
Output 5
Output 7
Output 2
Output 4
Output 6
Output 8
Top view 
Contact assembly 
extended shock and vibration range

EL4028 | 8-channel analog output terminal 4…20 mA, 12bit

The EL4028 analog output terminal generates signals in the range between 4 and 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated. Ground potential for the output channels of the EtherCAT Terminal is common with the 24 V DC supply. The output stages are powered by the 24 V supply. The EL4028 combines eight channels in one housing. The signal state of the EtherCAT Terminal is indicated by light emitting diodes.

Technical data EL4028 | ES4028
Connection technology 1-wire, single-ended
Number of outputs 8
Power supply 24 V DC via power contacts
Signal current 4…20 mA
Distributed clocks yes
Distributed clock precision << 1 µs
Load < 150 Ω
Output error < 0.1 % (relative to end value)
Resolution 12 bit
Electrical isolation 500 V (E-bus/signal voltage)
Conversion time ~ 400 µs
Current consumption power contacts typ. 60 mA
Current consumption E-bus typ. 100 mA
Bit width in the process image 8 x 16 bit AO output
Special features Optional watchdog: user-specific output value with ramp; user synchronisation can be activated.
Weight approx. 60 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all ESxxxx terminals
Approvals CE, UL, Ex